U.S. patent application number 12/631982 was filed with the patent office on 2010-06-10 for squeezing gun for two-part medical viscous fluid.
This patent application is currently assigned to SEIL GLOBAL CO., LTD.. Invention is credited to Im Jun AN.
Application Number | 20100143864 12/631982 |
Document ID | / |
Family ID | 41337408 |
Filed Date | 2010-06-10 |
United States Patent
Application |
20100143864 |
Kind Code |
A1 |
AN; Im Jun |
June 10, 2010 |
SQUEEZING GUN FOR TWO-PART MEDICAL VISCOUS FLUID
Abstract
This invention is about squeezing gun for two-part medical
viscous fluid that squeezes two different kinds of medical viscous
fluid simultaneously that are contained in double cartridge where
two tubes are combined in one body and when explained in more
detail, this invention is to squeeze simultaneously two kinds of
medical viscous fluid that are contained in double cartridge while
two horizontal scroll bars are moving horizontally as driving power
of driving motor is being reduced when push button of squeezing gun
which has the shape of pistol is pressed.
Inventors: |
AN; Im Jun; (Busan,
KR) |
Correspondence
Address: |
JORDAN AND HAMBURG LLP
122 EAST 42ND STREET, SUITE 4000
NEW YORK
NY
10168
US
|
Assignee: |
SEIL GLOBAL CO., LTD.
Busan
KR
|
Family ID: |
41337408 |
Appl. No.: |
12/631982 |
Filed: |
December 7, 2009 |
Current U.S.
Class: |
433/89 ;
222/135 |
Current CPC
Class: |
A61M 2005/3152 20130101;
A61C 5/68 20170201; A61M 5/19 20130101; A61C 5/62 20170201; A61C
9/0026 20130101; B05C 17/00553 20130101; B05C 17/0133 20130101 |
Class at
Publication: |
433/89 ;
222/135 |
International
Class: |
A61C 5/08 20060101
A61C005/08; B01F 15/02 20060101 B01F015/02 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 9, 2008 |
KR |
10-2008-0124824 |
Claims
1. A squeezing gun for ejecting two-part medical viscous fluid from
a front of the squeezing gun, comprising: a case main body having
an open front area formed by a cartridge insertion part, the case
main body being situated at an upper side of a handle in which a
push button is installed; a double cartridge in which a pair of
tubes that are filled with different viscous fluid is inserted and
fixed, the double cartridge having a rear flange part inserted and
fixed in the cartridge insertion part; a housing; and a pair of
horizontal scroll bars that moves forward when the push button is
pressed, the scroll bars being installed in the case main body,
screw threads being formed around all outer circumference edges of
the scroll bars, a key way being formed in each of the scroll bars
throughout the length thereof and a portion of the scroll bars
including a rear end portion thereof protruding backward through
holes that are formed through a rear wall of the housing; a bracket
supporting the rear end portion of the scroll bars; a spring
biasing the scroll bars toward the rear; a guide pin installed
between the rear wall and the bracket and supporting the spring; a
driving motor, equipped with decelerator installed in the case main
body; a driving gear installed on an axis of rotation of the
decelerator, a front portion of the scroll bars extending beyond
the main body, the housing and the driving gear; two respective
gear bodies which engage the driving gear at respective sides of
the housing; two tubular main bodies through each of which a
respective one of the scroll bars pass and on each of which a
respective one of the gear bodies is mounted; two final gears which
engage the driving gear and each of which is installed on the
circumference of a respective one of the tubular main body bodies;
screw holes which correspond to screw threads of the horizontal
scroll bars formed at both sides of a portion of the scroll bars
located in the housing; a pair of clutches each of which have an
inclined exterior portion and each of which comprise two parts
biased away from each other by a clutch spring; two clutch adhesion
parts that close up the respective clutches, the clutch adhesion
parts being hingedly installed in an open forward upper side of the
housing.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] This invention is about squeezing gun for two-part medical
viscous fluid that extrudes two different kinds of medical viscous
fluid at the same time that are contained in double cartridge where
two tubes are combined into one body and when explained in more
detail, this invention is to extrude simultaneously two kinds of
medical viscous fluid (hereinafter call viscous fluid) that are
contained in double cartridge while two horizontal scroll bars are
moving horizontally as driving power of driving motor is being
reduced when button of squeezing gun which has the shape of pistol
is pushed.
[0003] 2. Description of the Prior Art
[0004] Existing squeezing gun for two-part medical viscous fluid
has had the shape of pistol overall and in the case that users
squeeze viscous fluid in double cartridge which has been installed
in cartridge insertion edge of squeezing gun, users should squeeze
simultaneously two different kinds of viscous fluid contained in
double cartridge by first pulling a trigger and then two horizontal
scroll bars moving forward horizontally.
[0005] Double cartridge mentioned above contains two tubes which
are combined in one body and two different kinds of viscous fluid
are contained in the two tubes respectively and viscous fluid
contained in double cartridge is gel type which has high and stiff
viscosity and the viscous fluid is used to mold from the tooth when
putting crown on tooth in dentistry.
[0006] It has been difficult for user to squeeze viscous fluid with
high viscosity by only the power of index finger and squeezing
requires considerable power. Besides, viscous fluid has not been
squeezed correctly in the position that is intended to be targeted
because edge of double cartridge is shaken from which viscous fluid
is squeezed.
SUMMARY OF THE INVENTION
[0007] This invention is to solve the problem mentioned above. This
invention has the technological project to solve the problem as
follows. First, stiff viscous fluid in double cartridge can be
squeezed easily by only a little power that presses push button
that supplies power to driving motor by enabling horizontal scroll
bar to be moved horizontally with electric power of driving motor
where decelerator is installed. Second, viscous fluid can be
injected conveniently in the position that is targeted by detaching
double cartridge from squeezing gun easily.
[0008] The feature of this invention to achieve the purpose
mentioned above can be summarized as follows.
[0009] Case main body whose forward area is open is installed at
the upper side of handle where push button is installed. The open
forward area of case main body is formed by cartridge insertion
parts where rear area flange part of double cartridge in which a
pair of tubes that are filled with different viscous fluid is
inserted and fixed. A pair of horizontal scroll bars that move
forward when push button is pressed is installed in the case main
body. Screw thread is formed around all outer circumference edges
of horizontal scroll bar and key way is formed in horizontal scroll
bar throughout the length in transverse direction and a pair of
horizontal scroll bars mentioned above are protruded backward
through holes that are formed on rear wall of housing and the rear
side of horizontal scroll bars of both sides which are protruded
backward is installed so that the rear side can be supported by
bracket. Springs that move horizontally scroll bars of both sides
backward are installed in guide pin that is installed between rear
wall and bracket and driving motor which is equipped with
decelerator is installed in the case main body and driving gear is
installed on the axis of rotation of decelerator. A pair of
horizontal scroll bars penetrates the case main body and housing
whose driving gear is exposed forward is installed in the case main
body. Gear body of rotation which engages driving gear is installed
in both sides of housing and protruded key that is directed to key
way of tube type main body that is inserted outside of horizontal
scroll bar and that enables device to move vertically is formed
inside of gear body of rotation. In squeezing gun for two-part
medical viscous fluid which is made up of final gear engages
driving gear, screw holes which correspond to screw threads of
horizontal scroll bar are formed in both sides of a pair of
horizontal scroll bar which is located in the housing mentioned
above. A pair of clutches which form slope part outside with
springs interposed are installed elastically. Cover which forms two
clutch adhesion parts that close up a pair of clutches is installed
in the open forward upper side of housing mentioned above in hinged
mode.
[0010] This invention regarding squeezing gun for two-part medical
viscous fluid has the advantage in squeezing stiff viscous fluid in
double cartridge easily by a little power that presses push button
of switch shape which supplies power to driving motor by enabling
horizontal scroll bar to be moved horizontally with electric power
of driving motor where decelerator is installed.
[0011] Besides, this invention enables viscous fluid to be injected
correctly to the targeted place by easily detaching double
cartridge from squeezing gun as horizontal scroll bar can be
retracted rapidly due to elasticity of spring when opening cover
installed upper side of squeezing gun that can be opened or closed
in hinged mode after stopping squeezing viscous fluid in double
cartridge.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The above object and other characteristics and advantages of
the present invention will become more apparent by describing in
detail preferred embodiments thereof with reference to the attached
drawings, in which:
[0013] FIG. 1 refers to cross section that shows the first
implementation of this invention.
[0014] FIG. 2 refers to low section diagram which shows the state
of installation of power delivery means and horizontal scroll bar
which are installed in this invention.
[0015] FIG. 3 refers to A-A line cross section of FIG. 1.
[0016] FIG. 4 refers to cross section which shows the second
implementation example of this invention.
[0017] FIG. 5 refers to horizontal section which shows the state of
installation of power delivery means and horizontal bar that is
installed in this invention shown in FIG. 4.
[0018] FIG. 6 refers to B-B line cross section of FIG. 4.
[0019] FIG. 7 refers to horizontal section which shows the state of
installation of clutch that is installed in the second
implementation example.
[0020] FIG. 8 refers to longitudinal section which shows the state
of installation of clutch and horizontal scroll bar that are
installed in the second implementation example.
[0021] FIG. 9 refers to partial perspective view which shows main
body of the second implementation example.
[0022] FIG. 10 refers to disassembly perspective view which shows
the second implementation example.
DETAILED DESCRIPTION OF THE INVENTION
[0023] Explanation of squeezing gun for two-part medical viscous
fluid according to this invention referring to FIG. 1 and FIG. 10
is as follows.
[0024] This invention is to squeeze viscous fluid contained in
double cartridge with the power of driving motor 10 by installing
driving motor 10 on squeezing gun 1 which has the shape of pistol
where double cartridge 40 is installed in removable mode.
[0025] Forward area of double cartridge 40 mentioned above is
equipped with stout divider 43 and a pair of tubes 42 whose rear
side is open is combined in one body and at the rear side of double
cartridge where a pair of tubes are combined in one body, flange
part 41 that is designed to install double cartridge 40 at the
forward area of squeezing gun 1 in removable mode is formed
protruded outward and in each tube 42 mentioned above, different
kinds of viscous fluid is filled.
[0026] As shown in FIG. 1 and FIG. 3, case main body 2 whose
forward are is open is installed on the upper side of handle 3
where push button is installed and cartridge insertion part 6
equipped with flange hanging hole 5 where flange part 41 of double
cartridge 40 is inserted and hung is formed and a pair of
horizontal scroll bars 15 that move forward horizontally by
pressing push button 4 is installed inside of case main body 2.
[0027] Driving motor 10 equipped with decelerator 11 is installed
inside of case main body 2 and driving gear 12 is installed in the
axis of rotation of decelerator 11 and power delivery means 30 that
deliver turning force of decelerator 11 to horizontal scroll bars
of both sides 15 and make horizontal scroll bars move horizontally
is installed between driving gear 12 and horizontal scroll bar
15.
[0028] Screw thread 34 is formed throughout the length of
horizontal scroll bar 15 of power delivery means 30 and this screw
thread 34 can be formed with screw bar shape but in the case of
first implementation example of this invention, it is desirable
that rack gear is formed throughout the lower length of horizontal
scroll bar 15.
[0029] Intermediary gear 32 which engages driving gear 12 in the
axis of rotation 31 which is installed freely and final gear 13
which engages screw thread 34 of horizontal scroll bar of both side
15 are installed inside of case main body 2 respectively.
[0030] Upper forward area of case main 2 is installed open so that
cover 7 can be opened and closed and at the lower side of this
cover 7, hanging part 44 that makes flange part 41 of double
cartridge 40 is inserted and hung is formed when cover 7 is closed,
and guide 33 that directs smooth horizontal movement of horizontal
scroll bar 15 inside of case main body 2 of both sides.
[0031] The following is about the second implementation example
referring to FIG. 4 and FIG. 10 and in the case of the second
implementation example, the way of squeezing viscous fluid
contained in double cartridge 40 from squeezing gun 1 by the power
of driving motor 10 equipped with double cartridge 40 is the same
as that of the first implementation example.
[0032] With regard to squeezing gun 1 in the second implementation
example, as shown in FIG. 4, case main body 2 whose forward area is
open is installed on the upper side of handle 3 where push button 4
is set up and cartridge insertion part 6 equipped with flange
hanging hole 5 where flange part 41 of double cartridge 40 is
inserted and hung is formed at the open forward area of case main
body 2 and a pair of horizontal scroll bars that move forward
horizontally by pressing push button 4 is installed.
[0033] Driving motor 10 equipped with decelerator 11 is installed
in the case main body 2 and driving gear 12 is installed in the
axis of rotation of decelerator 11 and power delivery means 30 that
enable horizontal scroll bars 15 to move horizontally by delivering
the turning force of decelerator 11 to horizontal scroll bars 15 of
both sides is installed between driving gear 12 and horizontal
scroll bars (15).
[0034] As shown in FIG. 5 and FIG. 6, with regard to power delivery
means 30, screw thread 34 is formed throughout all outer
circumferential edges of horizontal scroll bar 15 and key way 16 is
formed throughout the length of horizontal scroll bar 15 in
transverse direction.
[0035] A pair of horizontal scroll bars 15 pass through case main
body 2 and housing 20 which driving gear 12 is exposed forward is
installed and gear rotation body 36 which engages driving gear 12
is installed at both sides of housing 20 mentioned above and this
gear body of rotation 36 is installed so that it can be moved
straight by being inserted outside of horizontal scroll bar 15.
[0036] With regard to gear rotation body 36, protruded key 14 that
is directed by being inserted into key way 16 of horizontal scroll
bar 15 is formed in the tube type main body 35 and final gear 13
which engages driving gear 12 is formed at the center of
circumference of tube type main body 35 is formed and outside of
forward and backward of tube type main body 35 is inserted into the
bearing 37 which is installed in housing 20 and consequently
rotation is supported.
[0037] As shown in FIGS. 5, 7 and 8, clutch 17 that makes
horizontal scroll bar 15 of both sides move backward by spring 26
and makes horizontal scroll bar 15 moves horizontally in screw mode
is installed on the horizontal scroll bar 15 of both sides in
housing 20.
[0038] The clutches mentioned above are made up of a pair of clutch
on left side and on the right side and screw way 17a that
corresponds to screw thread 34 of horizontal scroll bar 15 is
formed inside and slope part 18 is formed outside so that device
can be pursed inward by being inserted into clutch purse part 8 and
spring 19 that makes pursed a pair of clutches 17 stretched out is
installed between a pair of clutches 17.
[0039] Cover 7 that covers the upper open side of housing 20 is
installed on the upper forward open side of housing 20 by hinge pin
7a and clutch purse part 8 that makes a pair of clutches 17 pursed
inward by being inserted outside of slope part 18 of clutches 17 of
both sides when closing cover (7) is formed inside with shape.
[0040] As shown in FIGS. 5 and 9, horizontal scroll bars 15 are
protruded backward through holes 22 that are formed on the rear
wall 21 of housing 20 and rear edge of horizontal scroll bars 15 of
both sides that are protruded backward are installed so that it can
be supported by bracket 23 and spring 26 that makes horizontal
scroll bar 15 move backward is installed between rear wall 21 and
bracket 23.
[0041] At this time, holes 24 are formed at the center of bracket
23 mentioned above and guide pin 25 penetrates holes 24 and the
front edge of guide pin 25 supports the rear side of center of rear
wall 21 and spring 26 mentioned above is installed elastically
between rear wall 21 and bracket 23 while inserted into guide pin
25.
[0042] Decelerator 11 mentioned above is designed to decelerate the
rotation of driving motor 10 and decelerator which uses super gear
or decelerator which uses worm gear and as shown in FIG. 10, this
invention has installed epicyclical gear as decelerator.
[0043] Supplying power to driving motor 10 can be possible by
installing battery 45 in the handle 3 with removable mode and
operating driving motor 10 with power supply of battery 45 and it
is desirable that this battery 45 is charged by using additional
charger.
[0044] Though I have not shown the example in a drawing, horizontal
scroll bars of both sides of squeezing gun can be installed so that
they can be moved forward and backward by using air pressure
cylinder.
[0045] Interaction of this invention which is composed mentioned
above can be explained as follows referring to FIGS. 1 and 10.
[0046] In the first implementation example shown FIGS. 1 and 3,
after cartridge insertion part 6 is exposed to the forward area of
case main body 2 by opening the cover 7 of squeezing gun 1, if
flange part 41 of rear edge of double cartridge 40 inserts flange
hanging way 5 and closes cover 7, rear flange part 41 of double
cartridge 40 is inserted into flange hanging way 5 of cartridge
insertion part 6 and double cartridge 40 can be installed in the
forward area of case main body 40 as the upper side of flange part
41 is fixed in hanging part 44 that is formed to be cut downward on
the bottom side of edge of cover 7.
[0047] In this state, in the case user intends to squeeze viscous
fluid contained in double cartridge 40, user should turn switch of
control part 46 on and press optional switch that chooses rotation
speed of driving motor 10 and press push button 4 which is
installed at the forward area of handle 4 and make driving motor 10
run.
[0048] In this case, push button 4 is equipped with switch that
driving motor 10 can choose rotation in correct and reverse
direction and user should press push button 4 so that horizontal
scroll bar 15 can be moved forward when squeezing viscous
fluid.
[0049] When driving motor 10 rotates in the direction that
horizontal scroll bar 15 can be moved forward, rotation of driving
motor 10 decelerates in decelerator which is installed at the
forward area of driving motor 10 and by the turning force
decelerated mentioned above, driving gear 12 that is installed on
rotation axis of decelerator 11 becomes rotated.
[0050] If driving gear 12 rotates, intermediary gear 32 which
engages driving gear 12 rotates, as final gear 13 which engages
screw thread 34 which is formed with the form of rack gear at the
lower side of horizontal scroll bar is installed on both sides of
rotation axis 31 where intermediary gear 32, final gears 13 of both
sides rotate by turning force of driving gear 12 mentioned
above.
[0051] At this time, as driving gear 12 of both sides engage screw
thread 34 of horizontal scroll bar 15 as mentioned above,
horizontal scroll bars 15 of both sides move forward and front edge
of each horizontal scroll bar 15 is inserted into tube of double
cartridge 40 and different kinds of viscous fluid that is filled in
tube of both sides is squeezed through holes 43 that are formed at
the front edge of tubes of both sides.
[0052] Two kinds of viscous fluid that is squeezed from two tubes
are blended in mixed delivery branch which is installed at the
forward area of delivery branch which is formed at the front edge
of two tubes and squeeze viscous fluid at the place that is
targeted.
[0053] In the case viscous fluid mentioned above is used for dental
impression material, hardening begins from the time two kinds of
viscous fluid which is squeezed from damaged tooth from dental
patient are blended in mixture delivery branch and while hardening
for some time and shape that is intended to install dental
prosthesis for damaged tooth is molded.
[0054] While viscous fluid which is contained in tubes of both
sides is squeezed, push button 4 continues to be pressed and after
viscous fluid is squeezed, stop the rotation of driving motor 10 by
discontinuing pressing push button 4.
[0055] If push button 4 that is intended to rotate driving motor 10
in reverse direction is pressed, horizontal scroll bars 15 of both
sides which have been inserted in tubes of double cartridge 40 get
out.
[0056] After horizontal scroll bars 15 of both sides get out of
tube of double cartridge, hitching of hanging part 44 which is
applied to flange part 41 of double cartridge 40 is removed, and
double cartridge 40 detaches from cartridge insertion part 6 of
squeezing gun 1 by raising rear side of flange part 41 of double
cartridge 40 from flange hanging way 5 of cartridge insertion part
6.
[0057] When double cartridge 40 is detached from squeezing gun 1,
application medication work of viscous fluid using squeezing gun 1
of this invention is completed. This invention enables viscous
fluid squeezed easily as viscous fluid which is contained in double
cartridge 40 is squeezed by driving force of driving motor 10.
[0058] The following is explanation about squeezing viscous fluid
by using the second implementation example shown in FIGS. 4 and 10,
the way that is used in the second implementation example is the
same as that of the first implementation example in this case. When
double cartridge 40 is installed in squeezing gun 1, double
cartridge 40 is installed in cartridge insertion part 6 by opening
cover 7 and than closing cover 7. After turning power switch that
is installed on control part 46 on, user chooses rotation speed of
driving motor 10 by optional switch 47.
[0059] When closing cover 7 after installing double cartridge into
cartridge insertion part 6, as shown in FIGS. 4,7 and 8, clutches
of both sides 17 are pursed inside by slope part 18 while open
entrance of clutch purse part 8 which is formed with shape on cover
7 is inserted outside of slope side 18 of clutch 17.
[0060] As clutches 17 of both sides are pursed, screw way 17a which
is formed in clutch 17 and screw thread 34 which is formed in
circumference of horizontal scroll bar 15 engage each other.
[0061] At this state, if push button 4 is pressed, driving motor 10
is operated and driving gear 12 which is installed on the rotation
axis of decelerator 11 rotates by turning force which decelerates
with decelerator 11.
[0062] If driving gear 12 rotates, final gear 13 which engages
driving gear rotates as shown in FIG. 6. Because final gear 13 is
formed in a body outside of tube type main body 35 inserted outside
of horizontal scroll bar 15 and protruded key which is formed in
the tube type main body 35 is inserted in key way 16 which is
formed throughout the length of horizontal scroll bar 15,
horizontal scroll bar 15 rotates as final gear 13 rotates.
[0063] While horizontal scroll bar 15 rotates, because screw way
17a of clutch 17 whose location is installed fixed in housing 20
engages screw thread 34 of horizontal scroll bar 15 as shown in
FIGS. 5 and 7, horizontal scroll bars of both sides 15 move forward
while rotating in screw mode.
[0064] The reason final gear rotates at the same place and
horizontal scroll bar which is installed in tube type main body of
final gear 13 can move forward while rotating with final gear 13 is
that protruded key 14 which is pressed out inside of tube type main
body 35 is directed to key way 16 that is formed throughout the
length of horizontal scroll bar 15.
[0065] As pushing plate 15a that pushes viscous fluid by being
inserted in tubes 42 of double cartridge 40 is installed at the
front edge of horizontal scroll bar 15, horizontal scroll bar 15
moves forward while rotating and on the other hand pushing plate
15a does not rotate and it is inserted into tube 42 and
consequently, different kinds of viscous fluid is squeezed through
delivery branch 43 which is formed at the front edge of both
tubes.
[0066] Squeezing two kinds of viscous fluid which is squeezed from
two tubes at the targeted place and molding the form that is
intended to install dental prosthesis hardening as time passes in
the case that viscous fluid is used for dental impression material
is similar to the explanation in the first implementation
example.
[0067] While viscous fluid is squeezed which is contained in tubes
of both sides, push button 4 continues to be pressed and after
viscous fluid is squeezed, a user should stop rotation of driving
motor 10 by discontinuing the pressing push button 4.
[0068] After squeezing of viscous fluid is finished, in order to
detach double cartridge 40 from squeezing gun 1, when a user opens
cover 7 that is installed on the upper side of case main body 2, as
shown in FIGS. 5, 7 and 8, clutch purse part 80 which is formed
with shape at the lower side of cover 7 is raised toward the upper
side.
[0069] Clutch purse part 8 which is raised toward the upper side is
originally inserted outside of slope part 18 in clip mode and as
cover 7 opens, clutch purse part goes upward and clutch purse part
8 is detached from the outside of clutch 17.
[0070] If clutch purse part 8 which is formed with shape is
detached from outside of clutch 17, interconnection between screw
way 17a and screw thread 34 which is formed in clutch is removed as
both clutches 17 are stretched out by elasticity.
[0071] Removing interconnection between screw way 17a which is
formed in clutch 17 and screw thread 34 which is formed around
circumference of horizontal scroll bar 15 means that holding
horizontal scroll bar as clutch 17 is removed. At this time, as
shown FIGS. in 5 and 9, spring is installed between rear wall 21 of
housing 20 and bracket 23 which is installed at the rear edge of
horizontal scroll bar 15 of both sides and by the elasticity of the
spring, bracket 23 is moved backward.
[0072] As rear edge of horizontal scroll bar 15 of both sides is
connected and installed in the bracket 23, when opening cover 7,
holding state about horizontal scroll bar 15 is removed and this
free state horizontal scroll bar 15 moves backward promptly by
elasticity of spring 26.
[0073] Front edge of the spring 26 mentioned above is supported on
the rear wall 21 of housing 20 and rear edge of the spring is
inserted in guide pin 25 that penetrates the holes 24 of bracket 23
and enables horizontal scroll bar 15 of both sides to move backward
smoothly.
[0074] After horizontal scroll bars 15 of both sides get out of
tube 42 of double cartridge 40, double cartridge 40 can be detached
from cartridge insertion part 6 of squeezing gun 1 by raising
upward rear side flange part 41 of double cartridge 40 from flange
hanging way 5 of cartridge insertion part 6.
[0075] As double cartridge 40 is detached from squeezing gun 1,
medication work of this invention using squeezing gun 1 is
completed. This invention enables viscous fluid squeezed evenly
easily as viscous fluid contained in double cartridge 40 is
squeezed by driving force of driving motor 10.
* * * * *